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Cold radiator

Hi,
We just moved to the new house.
We have an old combi boiler with 2 settings - low and high.
When the boiler is working on the high setting,
the radiators in the main room and en-suite bathroom are hardly warm, when it's on low - they are cold.
All the other radiators work OK, we bled these ones a few times and opened all valves but this does not help.
Does this mean that the boiler cannot cope?
Can we change the radiator?
Thanks

Comments

  • ormus
    ormus Posts: 42,714 Forumite
    whats the make and model of the combi?
    maybe the system just needs cleaning out/flushing.
    Get some gorm.
  • If you switch the other radiators off, do they get hot then? This would prove whether the system can't cope. But realistically it is more likely to be corrosion/blockages and the system needs a flush/clean.

    You can certainly change the radiator, but if the blockage is in the pipework leading to/from it it won't help.
  • How much can the system cleaning/flushing cost?
  • ormus
    ormus Posts: 42,714 Forumite
    approx 100 from a local plumber and 300 from BG.
    Get some gorm.
  • The boiler was serviced a few months ago - should radiators also be checked?
This discussion has been closed.
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